Z -Form?0 pages

Z-Form™
Zero Clearance Bolt & Sleeve Assembly

Acument® Global Technologies
Quality first. Engineered to last.®
Zero clearance. Zero Slip.
Typical bolted joints require clearance to accommodate machining tolerances and rely solely on clamp load to prevent joint slip.
In joints subjected to high shear loads, traditional bolted joint assemblies may not be capable of keeping the clamped
components from moving laterally in relation to each other. Dowel pins and locating sleeves are traditionally used to resist
these shear loads.
The Z-Form™ Assembly consists of a shoulder bolt with a pre-assembled deformable sleeve which, when installed completely
eliminates clearance between the bolt and the through hole in the clamped component. This increases resistance to slippage,
retains clampload and extends gasket/seal life.
Features
• Sleeve expanding shoulder
• Retained deformable sleeve
• Zero clearance joint interface
Benefits
• Extremely high level of torque capacity for drive line joints
• Prevents lateral slippage in joints subjected to high shear
loads
• Allows for the use of fewer or smaller fasteners in many
applications

Specifications
• Available in standard sizes from M6 through M12
Industry Applications
• Drive Trains
• Flywheels
• Brake Systems • Ring Gears
• Flex Plates
• Bearing Caps

• Floating Axle Hubs
• Transmission Housings
• Suspension Components

Holding the world together.
In one customer validation test involving a ring gear application, Z-Form™ Bolt & Sleeve Assembly outperformed the existing
fastener by achieving 18X the number of reversing cycles. As a result, fewer or smaller fasteners may be used while still
retaining a longer lived and completely serviceable joint.